I'm still pretty convinced that the entire A class package is aerodynamically and hdrodynamically optimised compared to the F16's single handed. I do think there is a distinct difference bewtween single and dual, in my opinion the single handers will diverge toward the A class design and the dual toward the F18's design largely due to ergonomics of two bodies and the extra weight.

Lets only talk for the moment of single handers, in my view the A class are pushing the beam back more and more to get extra bouyancy in the now smaller and smaller bow volume, this suddenly starts to load the dagger board only, hence the dagger board is getting further back and the rudder is becoming tiny on the A's and by effect of only 1 board, less drag and more efficiency.

Now we have the problem on the F16's of when the Spinnaker goes up and the whole lack of aerodynamics of the snuffer and sprit which always is going to be our archilles heel.